Home / 199,427.15-298,891.25-99,615.20

Finding the Fourth Proportional to 199,427.15, 298,891.25 and 99,615.20

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Solution

The fourth proportional to 199,427.15, 298,891.25 and 99,615.20 is: 149,298.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,427.15 : 298,891.25 = 99,615.20 : x
  2. Step 2: Convert to fraction form
    199,427.15/298,891.25 = 99,615.20/x
  3. Step 3: Cross multiply
    199,427.15x = 298,891.25 × 99,615.20
  4. Step 4: Simplify right side
    199,427.15x = 29,774,109,654.47
  5. Step 5: Solve for x
    x = 29,774,109,654.47/199,427.15
  6. Step 6: Final answer
    x = 149,298.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.